Home / 138,439-203,768

Finding the Third Proportional to 138,439 and 203,768

Calculator

Solution

The third proportional to 138,439 and 203,768 is: 299,925.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,439 : 203,768 = 203,768 : x
  2. Step 2: Convert to fraction form
    138,439/203,768 = 203,768/x
  3. Step 3: Cross multiply
    138,439x = 203,768 × 203,768
  4. Step 4: Simplify right side
    138,439x = 41,521,397,824
  5. Step 5: Solve for x
    x = 41,521,397,824/138,439
  6. Step 6: Final answer
    x = 299,925.58

Related Problems

Find third proportional to 69,219.50 and 101,884
Half scale
Find third proportional to 276,878 and 407,536
Double scale
Find third proportional to 138,441 and 203,771
Similar ratio
Find third proportional to 207,658.50 and 305,652
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.